The object of the present invention is to provide an image forming apparatus that can transmit and receive data without any process part of an application corresponding to various communication protocols and easily add a communication protocol and an application. An image forming apparatus according to the present invention includes connection request mediation means for, in response to a connection notice from a plurality of communication protocol daemons to transmit and receive data in accordance with respective different communication protocols, mediating connection instead of the communication protocol daemons by informing the application that a connection request is provided to the communication protocol daemons and a shared memory being used for delivery of received data and transmitted data between the application and the plurality of communication protocol daemons and being shared by the communication protocol daemon.